Water purifying and degasifying apparatus



l July 3, 1945.

.1. F. sEBALD WATER PURIFYING A ND DEGASIF-YING PPARATUS Filed 'July 9, 1942 3 sheets-sheet 1.

Js/z I' 55153117 INVENTOR ATTORNEY July 3, 1945. J .F sEBALD WATER lPURIFYING AND DEGASIFYING APPARATUS Filed July 9, 1942 3 Sheets-Sheet 2 INVENTOR ATTORNEY July 3, 1945. J. F. sEExALDv WATER PURIFYING AND DEGASIFYING-AP-PARATUS Filed 'July 9, 1942 5 VSheets-Shcael: 3

ffffffff Il INVENTOR ATTORNEY YPatented July 3, 1945 WATER PURIFYIN G ANDv DEGAsmYING APPARA l Joseph F. Sebald, Bloomfield, N. J., assignor to Worthingtonlurnp and Machinery Corporation, Harrison, N. J., a corporation of Delaware Application July 9, i942, serial No. 450,265 es claims. iol. 21o- 44)V This invention relates to water treating apparatus and more particularly to an improved hot process water softener. for purication of boiler feed water or water for other uses rwherein heated, deaerated or degasified purified water is required.

The primary object of the present invention is to provide improved means for heating, orpurifying and for deaerating or degasifying water for boiler feed or analagous purposes, which means is constructed and arranged to provide maximum heat transfer between the heating steam and the water, utilizing the steam rst to heat the water which has been treated and purified. The heated purified water isdegasied by its passage into an area of low pressure, while the steam which is not condensed by the heating of the treated water passes on in the apparatus to contact the incoming raw water to provide heating thereof prior to its treatment by chemicals for purncation. l Amongfthe many objects of the present invention is the provision of a novel arrangement of heating means whereby the treated water passes through aconfined passageway in intimate mix-l densedstem and released gases pass into contact iwith the incoming raw 'water where'the greaterv portion of the steam is condensed. Any steam not lcondensed by heating contact with the` incoming water, together with the released gases, pass 4into a vent condenser of the surface type wherein the incoming raw water serves as a cooling medium for condensing the steam.

action for heating and degasifying the water, whereas in the present invention the heating action is provided during the conned mixed flow of steam and water, and the pressure drop is provided as the mixed stream emerges from the coniined mixing passage, resulting in a greater degree of pressure drop of the heated water and consequently' in a greater degree of de-gasication oi the water.

Another object of the present invention is the provision of means to impart vigorous rotation to the water in the .reaction settling chamber for mixing raw water and chemicals, and for building particles of precipitate of proper physical size and form so that they will readily remove themis imparted to the body of water being treated by the velocity of the entering water through the medium of 'specially arranged inlet spray valves for the water, or by passing a predetermined quantity of previously treated water 'through a stationary rotation imparting vane systemfinto the body of water being treated. If so desired or required, both the novel type and arrangement of spray valve and the rotation imparting vane system may be used in a single apparatus., or, if the conditions are such. either may be used independently of the other. p v

The chemicarliquids or reaction agent introduced into the apparatus are cooler than the water at the vpoint of contact, in that the water has previously had its initial heating in the vent 4 condenser and imcontact with the steam as the Heretofore it has been an acceptedpractice to Y utilize the incoming steam to the apparatus to atomize the water, depending upon the atomizing action, to both heat and degasify the water. While such action does result in a degree of heating and degasifying of the water, it has been found by test not to. remove the oxygen from the water to a. degreedesirable or required -by the latest modern type power plant systems, wherein practically zero oxygen content of the water is apparatus a pressure drop is taken in the steam to increase'its` velocity to provide the utilizing water is sprayed into the apparatus. Insome instances the introduced chemicals or reagent may represent suilicient volume to appreciably cool the water underv treatment, which will interfere with the eiliciency of the apparatus in that the lowering 0f the temperature of the water will place a higher burden of heating on the iinal heating 'and degaslfying element, resulting in over-all efficiency of the ing the chenical liquid to the temperature of'the water with which it is mixed. The heating of the chemicals has been found tol facilitate their reac tion with the dissolvedimpurities in the water bei!!! treated.

drica1 shell, which will be relatively economical l to manufacture, will require a. of floor space and will prevent dissipation of heat from the water asv would result from arrangement of the various compartments in. independent shells or housings.

With these and other objects in view as may appear from the accompanying specification, the

invention consists of various features of construc-` tion and combination of parts, which willbe rst described in connection wtih the accompanying drawings showing a water purifying and degasifying apparatus of the preferred form embodying the invention, and the features forming the invention'will be specifically pointed out in the claims.

In the drawings:

Figure 1 is a vertical section through the improved water purifying and degasifying apparatus.

Figure 2 is a fragmentary vertical section through the apparatus taken on the line 2--2 of Figure l.

Figure 3 is a horizontal section through the apparatus takeny on the line 3-3 of Figure 1.

Figure 4 is a detailed horizontal section taken on the line 4 4 of Figure 1.

Figure 5 is a detailed horizontal section .taken on the line 5-5 of Figure 1.

Figure 6 is a detailed view of the particular arrangement of the spray valves.

Figure 7 is a detailed sectional view of the part of the apparatus' showing the construction for washing down certain partitions-in the apparatus.

Referring more particularly to the drawings,

Athe improved water purifying and degasifying apparatus comprises a treating receptacle I, which is shown in the drawings inthe form of a cylindrical shell, the bottom of which has its sides converging downwardly and inwardly toward the axis of the shell to permit the drawing olf of sludge, constituting precipitated foreign material separated out of the water by the treating apparatus. Suitable valves 2, of any approved type, are provided for controlling the draining o vof the sludge from the receptacle I.

The .raw water to be treated is supplied from any suitable source (not shown) and passes through the raw water inlet pipe 3 into the inlet 4 of the vent condenser 5. 'I'he vent condenser 5 is of the surface type, and the raw water passes through the tubes 6 of the vent condenser and out of the outletl 1 into the water 8. The water Figure 6 of the drawings, so that the water sprayed therefrom will pass through the steam space 9 in an angular path, the component of angularity being shown in Figure 6 and indicated by the arrow A; The angularity of the ow of the water from the spray outlets I0 is such that the water assumes a circular path as it enters the reaction settling chamber II, causing vigorous rotation of the water in the reaction settling chamber II. A circular skirt I2 is carried by the top of the receptacle I and projects downwardly about the water ring 8 for a suitable distance to confine the multiple ne streams of water projected by vthe spray valves within a predetermined area and to regulate the angularity of the projected streams of water so as to provide the proper degree of rotation of the water within the settling reaction chamber II.

The settling reaction chamber II is formed by a cylindrical partition I 2, disposed concentric of the axis of the receptacle I and in extension downwardly through the receptacle I from the bottom of the steam space 9 to approximately the point where the bottom of the receptacle I begins its inward sloping for the purpose ofA providing a settling reaction chamber of suiiicient depth to permit complete precipitation of foreign matter from the Water under the action of the chemical reagent which is mixed with the water.

'I'he chemical reagent or chemical liquids are admitted into the receptacle I through a novel form of nozzle I5, which is shown generally in ring 8 is concentric of the axis of receptacle I and l nozzles IIl'of any suitable construction. The o spray outlets ID are arranged in spaced relation about the .bottom of the water ring 8, and they are inclined to the vertical, as clearly shownA in Figure 1 of the drawings, and is described in detail in my companion application, Serial No. 430,722 led February 13,"-1942.

'I'he chemical liquids introduced into the ap'- paratus are colder than the water at .the top of thesettling reaction chamber II because the water lhas previously had its initial heating, both by heat transfer in the vent condenser 5 and by contact with steam in the steam space 9, as will be hereinafter more fully described. In some instances, such as when the water purifying and degasifying apparatus is operating with a low load demand for purified water and consequently with a reduced amount of raw water entering the apparatus, the introduced chemicals may represent sumcient volume to appreciably cool the water in the reaction chamber I I. Such cooling of the water in the settling reaction chamber will interfere with the eiliciency of the apparatus in that the lowering of the temperature of the water will place a higher burden of heating on the final heated and degasifled element of the apparatus (which will be hereinafter more fully described) andl for this reason -the chemical injection nozzle I5 is constructed and arranged so that it will spray the incoming chemical liquidskinto the steam space 9 and upon the top of the rotating body of water in the settling reaction chamber II as indicated at I6 in Figure 1 o f the drawings. It has also been found that the heating of the chemicals facilitates their reaction with the dissolved impurities of the water being treated. The vigorous rotation of the water -in the top of the .settling 'reaction chamber I I assists in and causes thorough mixing of the chemicals and the partially heated raw water. o

The vigorous rotation imparted to the top area. of thewater in the settling reaction chamber, while gradually abating, is nevertheless main' tained downwardly through the settling chamber I I. .This r'otating effect is very advantageous for physical size and form so that'they will readily remove themselves when the downward direction oi' water iiow changes to horizontal and nally reverses at the entrance to the skirt II of the i? lby the -maintained rotary motion of the water as it passes downwardly through the reaction setparticles constantly contact each other, and the tling' chamber Il in that during such motion the o size" and physical properties of the precipitated particles are built up by accretion so that the than the pressure within the lconfined passage 22 particles assume suiiicient weight inrelation'to their surface friction, causing them to settle and finally separate out during'and Vafter the reversal of the direction of ilow of the water, such precipitated particles falling into the taperedbottom of the receptacle `I from which they are drawn on at desired intervals throughthe valves 2. The manner of imparting rotation to the water in motion ofthe water is substantially a horizontal rotating one which provides the most desirable` motion of the water to facilitate the proper growth h c Y 9,379,758 building up particles of precipitate to a proper settling chamber II into the steam space where l the growth of these particles is greatly facilitated f as it enters the receptacle I.

such steam and the released gases are engaged by the ilne streams Vof water sprayed through the steam space l by the'spray valves III. The contact of the sprayed water with the steam results both in condensation of a further quantity oi the steam and in the initial heatingl of the raw water Such steam as has not been condensed by the sprays of water, to gether with the released gases, pass through sui-table connections 30 into the vent condenser l about the tubes l. The steam is condensed in thevent condenser l, while the released gases are permittedto escape therefrom in the usual manner as provided in approved types ot vent condensers. The condensate provided by the' steam Y 2s the reaction settling chamber Il is `such that the and building up of the precipitation, because any other stirring action would cause general turbulence twithin the reaction settling chamber, and. tend to upset the quiescent equilibrium so necessary for the full utilization oi.' the entire cubical content of the reaction settling chamber II to insure thorough puriiication ofthe water. Another important advantage provided by the horizontal rotating motion is that the temperature across the reaction settling lchamber is equalized- .-0- permitted to develop and interfere with the et- .iiciency of operation oi' the apparatus and the and no short circuiting convection currents are thorough purification of the water.

- The partially heated treated water rises through the uptake cone I8 and passes through the conduit I9 into the treated water receiving compartment 2li oi' the iinal heatingstage of the apparatus.

The water rises through the compartment 20 and passes therefrom through the restricted passage 2| into the coniined mixing passage 22. The steam utilized forheating the water in the treating apparatus enters the receptacle I through the steam inlet 23 and passes downwardly through the space 24, reversing its direction of flow and entering the coniined mixing passage 22 through the relatively smallpassagell. The coniined mixing passage 22 is formed by the baies 2t' and 21, and during thefiiow or the steam and4 water through the coniined mixing'passage 22y the steam and water are thoroughly mixed Ato provide the maximum heat transfer between the steam and.

- sitioned a short distance outwardly of the outlet vof the coniined mixing passage 22K. The space I,

into which the mixed stream oisteam and water is projected, is necessarily of a lowerpressure so that'. as the mixed stream oi steam and water is projected into this low pressure area the .non-

" .condensed steam and released gases separate out of the 'water or steam and pass over th top of condensed in the vent condenser 5 passes through a suitable conduit 3i, the outlet end of which opens into a weir box 3l, from which it spills out in relatively thin streams through a part of the steam space 9, into a second conduit 3.4, which delivers a deaerated partially heated condensate into the compartment 20 for repassage through the coniined mixing passage 22.

` The water sprayed-out by the breaking up ot the stream of mixed flow of steam and water and by the pressure reduction in the chamber 9 passes over the upper edge of the baille 2,1 yand falls into the deaerated treated water storage space 35.

The treated water storage space ll is an annularv space within the receptacle I surrounding a part of the reaction settling chamber Il, and

which divides the treated water storage space 35 from-the annular iilter wash water compartment 31 which surrounds the lower part of the readtion'settling chamber II. l

The iilter wash water compartment 31 is covered by Patent No. 2,233,398 issued November 14, 1941, and it provides a storage compartment for quiescent treated water for use in washing down the filter 38 through which the treated deaerated water 'passes from the treated water storage space 35, Vfor use as is ordinary in installations employing waterlpuriiication and degasitlcation apparatusfsuch as constitutes the present invention. The treated water passes from the storage space I5 to the iilterl through a suitable conduit II, .and the wash water for washing the filter Il is passed in a reverse direction 'through 'the iilter 4 3l from the compartment 31 by a suitable con-y duit III. During the washing of the iilter 38 the f is opened. The washwater is passed throughI the lter `38 in a reverse direction and through the piping M, either into the sludge wash down ring Il or back into the compartment 3i through the branch pipe 46. Wash down ring Il sprays the returned water into the bottom part of the receptacle Ili'or washing out any settled sludge which might cling to the inner surface of the walls or the receptacle I. f t A washing ring 5l is positioned within the receptacle. I at the junction of the horizontalpartif tion Il and the wall I2 of the reaction settling chamber I I. This tubular ring I0 is provided with a piuralityof spaced openings 'Bl and l2 arranged "to spray cleansing water over the outer surface of the partition I2 within the treated water stor- .i l age space Il 'and over the top 'of the partition respectively for the purpose of washing these surfaces vto remove any sediment which might settle the adiacent .edge of the wall l2 .oi the reaction (5 thereon. The ring Il receives wash water from any suitable source -through an inlet connection 54. n

An alternate means is provided for imparting rotation to the water and chemicals in the reaction settling chamber, and this alternate mechanism comprises a stationary rotation imparting as being carried by the water supply pipe 5@ which t delivers the rotation imparting water thereto. The supply pipe 59 is shown as having its inlet to the compartment which receives the treated water immediately prior to the ilnal stage of heating. A pump 60 ofr any approved type is connected in the pipe 59 for withdrawing water from the compartment 20 and delivering it under pressure to the rotation imparting vane system 55. If it is so desired, the rotation imparting, vane system may be employed in a water purifying. and

treating apparatus in connection with the inclined spray v'alves for imparting rotation to the water, or it may be employed independently of the particular type and arrangement of spray valve.

It will be understood that the invention is not to be limited to the specific constructionnor arrangement of parts shown, but that they may be widely modified within the invention defined by the claims.

What is claimed is:

1. The method of degasifying and purifying water which consists in spraying the raw water to be treated through a steam containing space to partially heat the water, delivering the par- Atially heated water into a reaction chamber,

spraying chemicals in finely divided streams 'through the steam containing space, imparting vigorous rotation to the water in the reaction chamber whereby the water and the chemicals sprayed through the steam containing space will engage and be mixed with the rotating mixture in the reaction chamber for mixing, settling out the foreign matter precipitated in the reaction chamber, passing the treated puried water together with incoming steam in the same direction through a confined passage to thoroughly mix the steam and water, delivering the stream of mixed steam and water intoan area of lower pressure than in the coniined passage to separate outl released gases, and finally delivering the heated ltreated degasied water into a storage compartment f 2. The method -of degasifying and purifying water which consists in spraying the raw water tobe treated through a steam 'containing space to partially heat the water, delivering-the par tially heated water into a reaction chamber spray -lng reagent chemicals in finely divided streams through the steam-containing space, heatingth reagent chemical and consequently mixing the heated chemicals with the partially heated raw water in the reaction chamber, settling out the foreign matter precipitated in the reaction chamber, passing the treated puried water together with incoming steam in the same direction through -a confined passage tothoroughly mix the steamand water, delivering the stream of mixed steam and water into an area of lower pressure than in the conilned passage to separate out released gases, and nally delivering the heated treated degasiiled water into a storage compartment.

3. The method of degasifying and purifying water which consists in'spraying the raw. water to be -treated through a'steam containing spaar;v t0 Partially heat the water, delivering thep'a tially heated water into a reaction chamber,

spraying chemicals in finely divided streamsy through the steam containing space to heat thek chemicals, imparting vigorous rotation to the wa- I ter in the reaction chamber whereby the water and the chemicals sprayed through the steam containing space will engage the rotating mixture in the reaction chamber for mixing, settling out the foreign matter precipitated in the reaction chamber, passing the treated puried water to-v gether with the steam in the same ow direction through a, conned passage to thoroughly mix the steam'and water and heat the water, passing the heated purified water into an area of lower pressure than in the confined passage to separate out released gases, and finally delivering the heated'treated degasied water into a storage compartment, passing the non-condensed steam from said steam containing'space through a surf ace condenser and returning the condensed steam from the condenser into the-purified treated water immediately in advance of the heating thereof.

4. The' method of degasifying and purifying water which consists in spraying the raw water to be treated through a steam containing space to partially heat the water, delivering the Dartially heated water into a reaction chamber,

through thesteam containing space, imparting vigorous rotation to the water. in the reaction chamber whereby the water and the chemicals sprayed through thesteam containing space will engage 'the rotating mixture' in the reaction chamber for mixing, settling out the foreign matter precipitated in the reaction chamber, returning part of the purified -treated water to the reaction chamber and Ainjecting the returned puriiled water into' the reaction chamber in. arcuate paths and at a pressure in excess of the pressure of vthel water in the reaction chamber for imparting rotation to the water and chemicals in the reaction chamber, heating the remaining part of the puriiled treated water and passing the heated purified treated water into a low pressure area .a

to separate out released gases. and nnally delivering the heated treated degasifled water into a storage compartment.

5. In a hot process water treating apparatus a treating, receptacle having a reaction chamber" therein, and a plurality of spray outlets for spraying water to be treated into said reaction chamber, said spray outletsbeing arranged at acute angles tothe axis of said reaction chamber to direct the incoming sprayed water in a downwardly angular directionto' caus rotation of the water in the reaction chamber in ,substantially horizontally rotational paths, and a skirt carried by said receptacle and extendingl around'said spray outlets,` said skirt being disposed with respect to the spray outlets to control the water sprayed from the outlets andregulate the angular component of the spray to, provide the proper l degree of rotation of the water in the reaction n chamber.

6. In a hot process water treating apparatus a .near the top thereof, and means for delivering liquid to said vaned member for discharge therethrough into the reaction chamber-to impart rotation to the water in the reaction chamber.

7.. In a. hot process water treating apparatus, a treating receptacle having a reaction chamber therein, a plurality of spray outlets for spraying water to be treated into said reaction chamber, a steam inlet to said receptacle, said receptacle having a steam containing space therein between the spray outlets and said reaction. chamberfthroughA which the water is sprayed lby said spray outlets,

said receptacle having a compartment therein which receives-treated water from the reaction chamber, a stationary vaned member embodying a plurality of curved. vanes submerged in theliquid in the reaction chamber near the top thereot, and means for delivering water froznsaid compartment to said vaned member forli discharge therethrough into the reaction chamber to impart rotation to the water in the reaction chamber.

8. In a hot processwater treating apparatus,

a treating receptacle having a reaction chamber` therein, a plurality of sprayV outlets for spraying water to be treated into saidreaction chamber, a steam inlet to said receptacle, said receptacle having a steam containing space therein between the `spray outlets and said reaction chamber through which the water is sprayed by said spray outlets, saidvreceptacle having a compartment therein which receives treated water Vfrom the reaction chamber,'a stationary vaned member embodying a plurality of curved vanes submerged ing a plurality of curved vanes submerged in the liquid in the reaction chamber near the top thereo of, and means for delivering liquid to said varied member for discharge therethrough into. the reaction chamber to impart rotation to the water in the reaction chamber.

10. In a hot process water treating apparatus,

a treating receptacle having a reaction chamber and` a storage4 space for treated purified water therein, a steam inlet to said receptacle, a conned mixing passage through which treated water passes from the reaction chamber to the storage space, and means for guiding steam from said steamy inlet 'to said mixing Vpassage for flow through the mixing passage in the same direction as the water ilow therethrough for thorough mixe ing with the water in the passage to heat the water, said 'receptacle having a steam space therein above said reaction chamber and receiving non-condensed steam from said mixing passage, means for spraying water to be treated into said reaction chamber through said steam space to partially heat the water, a stationary vaned member embodying a plurality of curved vanes sub-l merged in the liquid in the reaction chamber near the top thereof, and means for delivering treated l water to said vaned r'nember for discharge there-t therein, asteam inlet to saidl receptacle, a con-l in the liquid in the reaction chamber near the top thereof, and means for delivering water fromsaid e compartment to said vaned member for discharge therethrough into the reaction chamber to impart a rotation to the water: in the reaction chamber, and means for spraying reagent chemicals in ilnely divided streams through said steam space and into the rotating iluidJin the reaction chamtherein, and a plurality of spray outlets for spraying water to be treated into said reaction chamber, said spray outlets being Varranged at acute angles to the axis of said reactionchamber to direct the incomingsprayed water in su'ch manner as to cause rotation of the water in the reaction chamber in substantially horizontally rotational paths, said receptacle havingtherein a storage lined mixing passage through which treated water passes from the reaction chamber to the storage space, and 'means for gu ding steam from lsaid steam inlet to said mixing `passage for ilow through the mixing passage in the same direction as the water-flow therethrough for. thorough mixing'with the water in the passage to heat the water, said receptacle having a steam space therein^ above said reaction lchamber and receiving` non-condensed steam from said mixing passage, means for spraying water to be treated into'said reaction chamber through said steam space to eating with said confined mixing passage and the space for treated pured water,` a steam inlet to said receptacle, a' confined mixing passage through which treated water passes -from said` reaction chamber to said storage space, and means for t' rough for thorough mixing with the water in the passage, austationary vanedmembergmbodylatter communicating with said `storage space,

means for conveying water from the,lreaction chamber; tp the treated water compartment ina plurality of curved vanes and being submerged in the liquid in the reaction chamber near the top thereof, and means for( taking water" from said compartment and discharging itvthrough said wash water compartment having communication with said reaction chamber to receive water therefrom, inlet-meanmfor delivering water from said i reaction chamberto said treated water chamber, means for delivering water-tto be treated to said cluding a. stationary vaned'meinber embodying l reaction chamber, and outlet means for water in said treated water chamber.

13. In a hot process water treating apparatus,

a receptacle, an annular partition within said receptacle forming a reaction chamber, a horizontal partition in said receptacle outwardly of and around said annular partition forming a filter wash water compartment and a treated water compartment in the receptacle about said annular partition, said iilter wash water compartment having communication with said reaction chamber to receive water therefrom, inlet means for delivering water from said reaction chamber to said treated water chamber, means for delivering water to be treated tosaid reaction chamber, outlet means for water in said treated water chamber, and means for spraying jets of cleansing uid over said horizontal partition and over a part of said cylindrical partition.

14. In a hot process water treating apparatus,

a receptacle, an annular partition within said receptacle forming a reaction chamber, a horizontal partition in said receptacle outwardly of said annular partition and forming a treated water compartment in the receptacle about said annular partition, means forming a communicatannular partition, means forming a communicating compartment through which -water passes from said reaction chamber to said treated water compartment, means for withdrawing part of the water .from said communicating compartment and returning it to said reaction chamber, means for delivering water to be treated to said reaction chamber, outlet means for treated water communicating with said treated water chamber. A

vand means for imparting rotary movement to the water returned to the reaction chamber from said communicating compartment for imparting rotary movement to the water delivered to the reaction chamber by said inlet means.

16.. In a hot process water treating apparatus, a receptacle, an annular partition within said receptacle forming a reaction chamber, a horizontal partition in said receptacle outwardly of said annularpartition and forming a treated watercompartment in the receptacle about said annular partition, means forming a communieating compartment through which waterv passes from said reaction chamber to said treated water compartment, means forming a steam inlet space in said receptacle, a steain inlet in said receptacle opening into said steam inlet space, means form` ing a restricted passage in the receptacle having inlet communication with said communicating compartment and steam inlet space and outlet communication with the treated water compartment whereby steam and water will flow in the same direction through said restricted passage to thoroughly mix the steam and water, means for delivering water torbe treated to said reaction chamber, and outlet means for water having communication with said treated water chamber. 17. In a hot process water treating apparatus, a receptacle, an annular partition within said receptacle forming a reaction chamber, a horizontal partition in said receptacle outwardly of said annular partition and forming a treated water compartment in the receptacle about said annular partition, means forming a communicating compartment through which water passes from said reaction chamber to said treated water compartment, means forming a steam inlet space in said receptacle, a steam inlet in said receptacle opening into said steam inlet space, means forming a restricted passage in the receptacle having inlet communication withsaid communicating compartment and steam inlet space and outlet communication with the treated water compartment whereby steam and water will flow in the.

same direction through said restricted passage to thoroughly mix the steam and water, said receptacle having a steam space therein above said reaction chamber, said steam space having communication with'said restricted passage for receiving residual steam from the .restricted passage, means forI spraying water to be treated through said steam space into said reaction chamber, means for spraying chemical lreagents in nely divided streams through said steam space into said reaction chamber, and outlet means fr vtreated water communicating with said treated water chamber.

18. In a hot process water treating apparatus, a receptacle, an annular partition within said receptacle forming a reaction chamber. a horizontal partition in said receptacle outwardly of said .annular partition and forming a treated water compartment in the receptacle about said annular partition, means forming a communicating compartment through which water passes from said reaction chamber to said treated water compartment, means forming a steam inlet space in said receptacle, a steam inlet in said receptacle opening-into said steam inlet space, means forming a restricted passage in the receptacle having inlet communication with said communicating compartment and steam inlet space` and outlet communication with the treated water compartment whereby steam and water will flow in the same direction through said restricted passage to thoroughly mix the steam and water, said receptacle having a. steam space therein above said reaction chamber, said steam space having communication with said restricted passage for receiving residual steam from the restricted passage, means for spraying water to bt treated through `smaid steam space into said reaction chambermeans for spraying chemical reagents in finely, divided streams through saidsteam space into said reaction' chamber, outlet means for treated water communicating with said treated water chamber, and fmeans for with- 'Y drawing part of the water from said communi.- eating compartment and' returning it to said reaction chamber.

` 19. In a hot' process Water` treating apparatus.

,a receptacle, an annular partition within said receptacle forming a reaction chamber, a horizontal partition in said receptacle outwardly of said annular partition and forming a treated water compartment in the receptacle about said annular partition, means forming a communicating compartment through which water passes from said reaction chamber to said treated water 4 compartment, means forming a steam inlet space in said receptacle a steam inlet in said receptacle opening into said steam inlet space, means forme ing a restricted passage in the receptacle having inlet communication with said communicating compartment and steam inlet space and outlet communication with the treated water compartment whereby steam and water will ilow inthe same direction through said restricted passage to thoroughly mix the steam and water, said receptacle having a steam space therein above said reaction chamber, said steam space having cominunication with said restricted passage for receiving residual steam from the restricted Dassage, means for spraying water to be treated through said steam space into said reaction chamber, means for spraying chemical reagents in finely divided streams through said steam space into said reaction chamber, outlet means for lsaine direction through said whereby steam -and treated -water communicating with said treated water chamber, means for withdiawing/part of the water from said communicating oompartmen and returning it to said reaction chamber, and means for imparting rotary movement to the water returned to the reaction chamber from said communicating compartment for imparting rotary movement to tioncompartment by said spraying means.

20. In a hot process water treating apparatus. a receptacle, an annular partition within said receptacle forming a reaction chamber, a' horizontal partition in said receptacle outwardly of said annular partition and forming a treated water compartment in the receptacle about said annular partition, means forming a communicatling compartment through which water passes from said reaction chamber to said treated water.

compartment,

restricted passage to thoroughly mix the steam and water, means for delivering water to be treated to said reaction chamber, and outlet means for munication with said treated means for spraying Jetsof said horizontal partition and drical partition.

21. In a hotprocess water treating apparatus, a receptacle, an annular partition within said receptacle forming a reaction chamber, 'a horizontal partition in said receptacle'outwardly. of said annular partition and forming a treated water conn partment in thewreceptacle about said annular partition, means tanning a communicating conipartment through which water passes from reaction chamber to said treated water compartment, means forming a steam inlet space in said water having comwater chamber, and cleansing .nuid over a part of said cylindirection through said restricted passage to thoroughly mix the steam and water, spray 'outlets for spraying water to be tion chamber, Said spray incoming sprayed water in -a the water delivered to theresewater will flow in the same partition in said of the water in thereaction chamber, and outlet means for treatedwater having communication with said treated water chamber. l

22. In a hot process water treating apparatus, a receptacle, an annular partition within said receptacle forming a reaction chamber, a horizontal receptacle outwardly of said annular partition and forming a treated water compartment/ in the receptacle about said annular partition, means forming a communicating compartment through which water passes from said reaction chamber to said treated water compartment,.means forming a steam inlet space in said receptacle, means l forming a restricted e in the `receptacle having inlet communication with said 'communicating compartment and steam inlet space and outlet communication with the treated water compartment whereby steam and water will ilow in the same direction through said restricted passage to thoroughly mix the steam and water, spray outlets for spraying water to be treated into said nreaction chamber, said spray outlets being arranged at acute angles Vto f the axis oi' the reaction chamber to 4direct the 'said vreaction chamber.

annular partition, means said 4anda treated into said reacoutlets being arranged iat acute angles to the axis of the reaction champassage to heat incoming sprayed water in a downwardly angular direction to cause' rotation of the water in the reaction chamber, and outlet means for treated water having communicationv with said treated water chamber, said receptaclelhaving a steam space thereinabove said reaction chamber and having communication with the outlet of said re-` stricted passage to receivel residual steam therel4 from, said spray outlets arranged to project the incoming water through said steam space, and

means for spraying chemical reagents in finely divided streams through said steam space into 23. In a hot process areceptacle, anannular partition within said receptacle forming reaction chamber, avhorizontal partition in aid receptacle outwardly ot said annular partitionj water compartment in t e receptacle about'said forming a communicatwater treatingr apparatus,-

and 'forming a treated f ing compartment through which water passes from said reaction chamber to said treated water compartment, means forming a steam inlet space in said recep acle, means forming a restricted passage in the receptacle .having inlet communication with lsaid communicating -committment. and steam inlet-space and outlet communication with the treated water compartment whereby.

steam and water will now in the same ,direction mixed iiow of steam and water. 'a 2 In a hotprocess water treating apparatus. a treating receptacle having a reaction.

storage space-for therein, a steam inlet to lined mixingpa'ssag'e in which treated water passes from .the 'reaction storage space, means for guiding steam from the steam inlet to said' Mage for now through the' passage-in the same direction as the water treated purified water said receptacle, a conthe water, al steam space `therein above said reaction cham-v ber and receiving residua-lsteam from said mixing passage, a plurality'ot spray outlets at the top ot g said receptacle having said receptacle` through said steam 'space and arranged at acute angles to the axis of said reaction chamber for spraying incoming water to be treated in a downward angular direction through said steam space in a flow direction across the flow direction of steam into the steam space and tocause rotation of the water in the reaction chamber in substantially horizontally rotational paths.

25. In a hot process water treating apparatus, a treating receptacle having a reaction chamber` and a, storage space for treated -purled water therein, a 'steam inlet to said receptacle, a conned mixing passage in said receptacle through which treated 'water passes from the reaction chamber to the storage space, means for guiding steam from the steam inlet to said mixing passage for flow through the passage in the vsame direction as the water flow therethrough for thor- A oughly mixing the steam and water in the mixing passage to heat the Water, said receptacle having a steam space therein above said reaction cham ber and receiving residual steam from said mixing passage, a plurality of spray outlets at the top of said steam space and arranged at acute angles to the axis of said reaction chamber for spraying incoming water to be treated in a downward angular direction through said steam space in -a ow direction across the flow direction of steam into the steam space and to cause rotation of the water in the reaction chamber in substanto said storage space.

tially" horizontally rotational paths, and means in the path of the steam and water leaving said confined mixing passage for breaking up the mixed ow of steam and water and directing the water JOSEPH F. SEBALD. 

